Data race condition

The value of the shared data will be determined by the interleaving of thread execution. Thread shared data is accessed without holding an appropriate lock, possibly causing a race condition
/src/mongo/executor/thread_pool_task_executor.cpp:254: MISSING_LOCK 175073 Accessing "this->_sleepersQueue" without holding lock "mongo::executor::ThreadPoolTaskExecutor._mutex". Elsewhere, "mongo::executor::ThreadPoolTaskExecutor._sleepersQueue" is written to with "ThreadPoolTaskExecutor._mutex" held 2 out of 2 times.